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今見ごろのレナード彗星(C/2021 A1)を観測しよう！彗星軌道要素ファイル更新のお知らせ

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2021.12.03

彗星が、いつ・どの方角に見えるかをわかりやすく表示する無料アプリ『Comet Book（コメットブック）』にレナード彗星の軌道要素を追加するアップデートを実施しました。
これにより、12月上旬から中旬にかけて見ごろの「レナード彗星 (C/2021 A1)」の位置をアプリから調べることができます。

12月12日頃までは明け方の東の空で見やすく、16日以降は夕方の南西の空低い位置で見ることができそうです。5等前後の明るさになると予想され、空の条件の良いところであれば双眼鏡を使うと彗星の姿を見ることができるでしょう。彗星の明るさは徐々に暗くなっていくことが予想されますので、ぜひ早めの機会に淡い尾を引いたレナード彗星の姿を観察してみてください。

Comet Bookイメージ画面

ビクセン無料アプリ『Comet Book』（コメットブック）

アプリ詳細はこちら
https://dog-green-76d6e2c57a195ff9.znlc.jp/app/comet-book/

また、ビクセン赤道儀用コントローラーSTAR BOOK TEN、STAR BOOK、STAR BOOK TypeS用の軌道要素も更新しました。
下記のアップデート情報ページより、レナード彗星 (C/2021 A1)の追加された「軌道要素ファイル」をダウンロードいただけます。

STAR BOOK TEN、STAR BOOK、STAR BOOK TypeSのアップデート情報ページ
https://dog-green-76d6e2c57a195ff9.znlc.jp/update/#sec-02

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